CN216120327U - Laminating mechanism and photovoltaic laminating machine - Google Patents

Abstract

The utility model discloses a laminating mechanism and a photovoltaic laminating machine, relates to the technical field of photovoltaic, and aims to solve the technical problems that a photovoltaic assembly is easy to degrade and the manufacturing cost is increased due to hidden cracks, bubbles and the like caused by abnormal positions and sizes of enclosing frames. The lamination mechanism includes: the device comprises an upper pressing device, a lower pressing device, a jacking device, a pressure sensor and a controller in communication connection with the jacking device and the pressure sensor. The upper pressing device and the lower pressing device are arranged oppositely, the jacking device is arranged in the lower pressing device, and the pressure sensor is arranged on the lower pressing device. When laminating mechanism carries out the lamination to photovoltaic module, photovoltaic module places on the pressure equipment, and jacking device forms and encloses with photovoltaic module assorted and close the region to carry out spacingly to photovoltaic module along photovoltaic module's length direction and width direction. The photovoltaic laminating machine comprises the laminating mechanism provided by the technical scheme. The photovoltaic laminating machine provided by the utility model is used for laminating a photovoltaic assembly.

Description

Laminating mechanism and photovoltaic laminating machine

Technical Field

The utility model relates to the technical field of photovoltaics, in particular to a laminating mechanism and a photovoltaic laminating machine.

Background

The photovoltaic laminating machine is an important device required for manufacturing a photovoltaic module, and can press materials such as tempered glass, solar cells, ethylene-vinyl acetate copolymer (abbreviated as EVA), a back film and the like into the photovoltaic module under the condition of high temperature and vacuum according to a certain sequence.

In the photovoltaic industry, photovoltaic modules produced by various module manufacturers have various models, so that different types of lamination tools need to be switched when the photovoltaic modules are laminated. At present, in order to improve the stability and the operation efficiency of the laminating machine, a fixing structure for fixing the component to be laminated is added in the laminating machine.

The scheme widely used in the industry at present is to add an enclosure frame for fixing a component to be laminated in a laminating machine, however, when the enclosure frame is used for fixing the position of the component, the photovoltaic component is prone to have the problems of hidden cracks, air bubbles and the like due to the abnormal position and size of the enclosure frame, so that the degradation of the photovoltaic component is caused, and the manufacturing cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a laminating machine which is used for solving the technical problems that a photovoltaic module is easy to degrade and the manufacturing cost is increased due to hidden cracks, bubbles and the like caused by abnormal positions and sizes of enclosing frames.

In order to achieve the above purpose, the utility model provides the following technical scheme:

in a first aspect, the present invention provides a lamination mechanism for a photovoltaic laminator, the lamination mechanism comprising: the device comprises an upper pressing device, a lower pressing device, a jacking device, a pressure sensor and a controller in communication connection with the jacking device and the pressure sensor. The upper pressing device and the lower pressing device are arranged oppositely, the jacking device is arranged in the lower pressing device, and the pressure sensor is arranged on the lower pressing device. When laminating mechanism carries out the lamination to photovoltaic module, photovoltaic module places on the pressure equipment, and jacking device forms and encloses with photovoltaic module assorted and close the region to carry out spacingly to photovoltaic module along photovoltaic module's length direction and photovoltaic module's width direction.

Compared with the prior art, when laminating mechanism carried out the lamination to photovoltaic module, photovoltaic module placed on the device that pushes down, and the last pressure sensor that sets up of the device that pushes down senses photovoltaic module's gravity, and pressure sensor transmits the gravity information who senses to the controller, and later, photovoltaic module's position is confirmed to the controller to jacking device on the control device that pushes down rises. The jacking device limits the position of the photovoltaic module along the length direction of the photovoltaic module and the width direction of the photovoltaic module so as to fix the photovoltaic module in the laminating machine. Based on the above, the laminating mechanism provided by the utility model can fix the photovoltaic module by using the jacking device under the condition that the enclosing frame is not used, and compared with the traditional mechanical mechanisms such as an edge clamping mechanism, a correcting plate correcting mechanism and a positioning mechanism which are additionally arranged in the laminating machine in the prior art, the laminating mechanism provided by the utility model has relatively simple mechanical design, reduces the mechanical design complexity of the photovoltaic laminating machine and can effectively reduce the equipment operation failure rate. The jacking device can limit the position of the photovoltaic module along the length direction of the photovoltaic module and the width direction of the photovoltaic module, so that the photovoltaic modules with different sizes can be limited, and the photovoltaic module is prevented from being damaged due to improper arrangement of the enclosing frame, therefore, the laminating mechanism provided by the utility model can solve the technical problems that the photovoltaic module is degraded due to hidden cracks, bubbles and the like caused by abnormal positions and sizes of the enclosing frame of the photovoltaic module, and the manufacturing cost is increased.

In a possible implementation, the jacking device includes a plurality of jacking pieces and a driving assembly in driving connection with the jacking pieces, wherein: the drive assembly is in communication with the controller. When the laminating mechanism laminates the photovoltaic assembly, the driving assembly is used for driving the target jacking piece to ascend so as to form an enclosure area matched with the photovoltaic assembly.

Under the condition of adopting above-mentioned technical scheme, when lamination mechanism carries out the lamination to photovoltaic module, the controller control drive assembly drive target jacking piece rises, forms and closes the region with photovoltaic module assorted enclosure for carry on spacingly to photovoltaic module. Wherein, above-mentioned target jacking piece is confirmed according to photovoltaic module's size. It can be understood that, because jacking device includes a plurality of jacking pieces, when carrying out spacingly to photovoltaic module, the jacking piece around the drive photovoltaic module rises, forms and closes the region with photovoltaic module assorted enclosure. For example: when the photovoltaic module needing laminating is large in size, the driving assembly drives the jacking piece at the edge of the photovoltaic module to ascend under the control of the controller to form a surrounding area matched with the photovoltaic module with the large size, and at the moment, the jacking piece at the edge of the photovoltaic module with the large size is a target jacking piece. For another example, when the photovoltaic module to be laminated is small in size, the driving module drives the jacking piece at the edge of the photovoltaic module to ascend under the control of the controller to form an enclosure area matched with the photovoltaic module with the small size, and at this time, the jacking piece at the edge of the photovoltaic module with the small size is a target jacking piece. Therefore, the laminating mechanism provided by the utility model can be used for fixing photovoltaic modules with different sizes.

In a possible implementation manner, the pressing device includes a plurality of first heating members and an upper cavity for accommodating the plurality of first heating members, and the pressing device includes a plurality of second heating members, and a lower cavity for accommodating the plurality of second heating members and the plurality of lifting members. The pressure sensor is disposed on the second heating member. The plurality of lift members are provided at the outer peripheries of the plurality of second heating members. When the laminating mechanism laminates the photovoltaic module, the upper cavity and the lower cavity form a laminating cavity.

Adopt under the condition of above-mentioned technical scheme, laminating mechanism's last pressure equipment is put including a plurality of first heating members, and laminating mechanism's pushing down device includes a plurality of second heating members, can heat photovoltaic module from photovoltaic module's top and bottom respectively. The problem that in the prior art, only the bottom of the photovoltaic module is heated, the heat transfer speed is low, the local heating of the photovoltaic module is uneven, and the deformation of the photovoltaic module is further aggravated is solved.

In one possible implementation manner, the upper cavity is provided with a first through hole, and the first through hole is communicated with an upper vacuum pipeline of the photovoltaic laminating machine; the lower cavity is provided with a second through hole, and the second through hole is communicated with a lower vacuum pipeline of the photovoltaic laminating machine. Based on this, the upper portion vacuum pipe of photovoltaic laminator can aerify and bleed the top-pressing device of lamination mechanism through first through-hole, and the lower part vacuum pipe of photovoltaic laminator can aerify and bleed the bottom-pressing device of lamination mechanism through the second through-hole.

In a possible implementation manner, the pressing device further includes a sealing member, the sealing member is located on a side of the first heating member facing the lower cavity and is fixedly connected to a sidewall of the upper cavity, and the sealing member is configured to form a sealing structure with the upper cavity.

Adopt under the condition of above-mentioned technical scheme, the sealing member is located between photovoltaic module and a plurality of first heating member. When carrying out the lamination to photovoltaic module, aerifing the back to the epicoele body, atmospheric pressure in the seal structure is greater than the outer atmospheric pressure of seal structure, and the top towards photovoltaic module is extruded under the effect of inside and outside pressure difference to the sealing member for photovoltaic module fixes in jacking device under the extrusion of sealing member, further avoids photovoltaic module to take place the displacement. And the top of the photovoltaic module can effectively reduce the gap between each layer of packaging material of the photovoltaic module under the action of the downward pressure of the sealing element, and avoid the phenomenon that bubbles are generated inside the photovoltaic module due to overlarge gap between each layer of material, thereby producing unqualified photovoltaic modules.

In a possible implementation manner, when the laminating mechanism laminates the photovoltaic module, each first heating element has a first surface close to the photovoltaic module, each second heating element has a second surface close to the photovoltaic module, and the first surface and the second surface are both arc surfaces.

It can be understood that, when carrying out the lamination to photovoltaic module, the first face and the second face that are close to photovoltaic module are middle slight bellied arc surface, and this arc surface has elasticity, when carrying out the lamination to photovoltaic module, the arc surface can cushion the effort of second heating member to photovoltaic module's bottom, can avoid because the top of heating member is too sharp-pointed or hardness is too strong to produce the damage to photovoltaic module, influence photovoltaic module's product percent of pass.

In a possible implementation manner, the laminating mechanism further comprises a high-temperature cloth located between the photovoltaic module and the pressing device, the high-temperature cloth is provided with a plurality of openings, and the positions of the plurality of openings correspond to the positions of the plurality of lifting pieces one to one.

Because the high-temperature cloth takes the polytetrafluoroethylene emulsion as the raw material, the prepared polytetrafluoroethylene high-temperature cloth has the characteristic of good anti-sticking property. Based on this, high temperature cloth is located between photovoltaic module and the push down device, carries out the in-process of lamination to photovoltaic module, and high temperature cloth can avoid photovoltaic module and push down the device adhesion together, is of value to the product percent of pass that improves photovoltaic module. Simultaneously, a plurality of opening positions of high temperature cloth and the position one-to-one of a plurality of jacking pieces, consequently, can not influence the lift of jacking piece, also can not influence the limiting displacement of jacking piece to photovoltaic module.

In one possible implementation, when the laminating mechanism laminates the photovoltaic module, the difference between the top height of the jack and the top height of the photovoltaic module ranges from 5mm to 10 mm. Based on this, the top height of jacking piece and the suitable difference in height between photovoltaic module's the top height can guarantee that jacking piece is when spacing carrying on photovoltaic module, and the height that photovoltaic module piled up can not surpass jacking piece, and simultaneously, jacking piece also can not be too high, leads to influencing photovoltaic module's lamination effect to jacking piece has been guaranteed to photovoltaic module's spacing effect.

In one possible implementation, the jacking piece is a cylindrical jacking piece; or the jacking piece is a frustum-shaped jacking piece.

In one possible implementation, the drive assembly is a pneumatic drive assembly or a pressure-sensitive drive assembly.

In a second aspect, the present invention provides a photovoltaic laminator comprising a lamination mechanism as described in the first aspect or any one of the possible implementations of the first aspect.

The beneficial effects of the photovoltaic laminator provided by the second aspect are the same as those of the laminating mechanism described in the first aspect or any possible implementation manner of the first aspect, and are not described herein again.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic structural diagram of a lamination mechanism provided in an embodiment of the present invention

Fig. 2 is a first top view of a lifting device from a 45 degree perspective according to an embodiment of the present invention;

fig. 3 is a second top view of the jacking device with a 45 degree viewing angle according to the embodiment of the present invention;

FIG. 4 is a schematic view of an opening of a high temperature cloth in a lamination mechanism according to an embodiment of the present invention;

fig. 5 is a schematic view of a single jacking member provided by an embodiment of the present invention.

Reference numerals:

100-laminating mechanism, 110-press-on device,

120-a hold-down device, 130-a jacking device,

1101-an upper chamber, 1102-a first heating element,

1103-first through hole, 1104-sealing structure,

1105-the seal, 1201-the lower chamber,

12011-lower cavity bottom plate, 12012-lower cavity table top,

1202-second heating element, 1203-second through hole,

1301-jacking piece, 140-high temperature cloth.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

At present, the photovoltaic module is laminated by using an oil heating laminating machine widely, the bent pipelines of the heat conduction oil are distributed under a bottom heating plate for placing the photovoltaic module, and the photovoltaic module is integrally heated through the bottom heating plate. In order to improve the lamination stability and the operation efficiency, the photovoltaic module placed on the bottom heating plate needs to be fixed.

When fixing the photovoltaic module, consider to increase at laminator cavity edge and press from both sides tight design, nevertheless because the laminator is when carrying out the lamination to the photovoltaic module, need bleed to the laminator cavity to satisfy vacuum state, consequently can't use the cylinder mechanism that can appear losing air the phenomenon, can only use mechanical modes such as mechanical connecting rod. The response speed of mechanical transmission cannot meet the requirement of quick and accurate positioning, the problem of bubbles generated in an adhesive film due to too low positioning speed can occur, or the problem of glass damage due to extrusion of a photovoltaic module due to too high extrusion speed can occur. Meanwhile, if a positioning mechanism is added at the side or the top inside the cavity of the laminating machine, the whole equipment of the laminating machine is overlarge in size. Not only does not increase the effective lamination area, but it also results in increased equipment cost. And the heating design at the bottom of the oil heating laminating machine is not beneficial to increasing the mechanical structure for fixing the photovoltaic module.

Therefore, when laminating the photovoltaic module, the enclosure frame is required to be used for fixing the photovoltaic module. However, the photovoltaic modules with different sizes need the enclosure frames with different sizes to be fixed, and in the lamination process of the photovoltaic modules, the problems that the edge cells of the photovoltaic modules are hidden and cracked, bubbles are generated inside the photovoltaic modules and the like easily occur in the photovoltaic modules due to the abnormal positions and sizes of the enclosure frames, and the problems can cause degradation of the photovoltaic modules, influence the product yield of the photovoltaic modules and further increase the manufacturing cost of the photovoltaic modules.

In order to solve the above problem, referring to fig. 1 and fig. 2, a lamination mechanism 100 according to an embodiment of the present invention includes: the system comprises a pressure boosting device 110, a pressure lowering device 120, a jacking device 130, a pressure sensor and a controller in communication connection with the jacking device 130 and the pressure sensor. The pressing device 110 is disposed opposite to the pressing device 120, the jacking device 130 is disposed in the pressing device 120, and the pressure sensor is disposed on the pressing device 120. When the laminating mechanism 100 laminates the photovoltaic module, the photovoltaic module is placed on the pressing device 120, and the jacking device 130 forms an enclosing area matched with the photovoltaic module so as to limit the photovoltaic module along the length direction of the photovoltaic module and the width direction of the photovoltaic module.

In the specific implementation: firstly, the photovoltaic module is placed on the pressing device 120, and the pressure sensor arranged on the pressing device 120 transmits the position information of the photovoltaic module to the controller after sensing the gravity of the photovoltaic module. After the controller receives the position information of the photovoltaic module, the controller controls the jacking device 130 at the edge of the photovoltaic module to lift, and the enclosed area lifted by the jacking device 130 is matched with the size of the photovoltaic module to be laminated and used for limiting the photovoltaic module.

According to the structure and the specific implementation process of the laminating mechanism 100, when the laminating mechanism 100 laminates the photovoltaic module, the photovoltaic module is placed on the pressing device 120, the pressure sensor arranged on the pressing device 120 senses the gravity of the photovoltaic module, the pressure sensor transmits the sensed gravity information to the controller, and the controller confirms the position of the photovoltaic module and controls the lifting device 130 on the pressing device 120 to lift. The jacking device 130 defines the position of the photovoltaic module along the length direction and the width direction of the photovoltaic module to fix the photovoltaic module within the laminator. Based on this, the laminating mechanism 100 provided by the embodiment of the utility model can fix the photovoltaic module by using the jacking device 130 without using a surrounding frame, and compared with the traditional mechanical mechanisms such as edge clamping, correction plate correction and positioning mechanisms added in the laminating machine in the prior art, the laminating mechanism 100 provided by the embodiment of the utility model has relatively simple mechanical design, reduces the mechanical design complexity of the photovoltaic laminating machine, and can effectively reduce the equipment operation failure rate. In addition, the jacking device 130 can limit the positions of the photovoltaic modules along the length direction of the photovoltaic modules and the width direction of the photovoltaic modules, so that the photovoltaic modules with different sizes can be limited, and damage to the photovoltaic modules due to improper arrangement positions of the enclosing frames is avoided, and therefore, the laminating mechanism 100 provided by the embodiment of the utility model can solve the technical problems that the photovoltaic modules are degraded and the manufacturing cost is increased due to hidden cracks, bubbles and the like caused by abnormal positions and sizes of the enclosing frames of the photovoltaic modules.

In one possible implementation, the jacking device 130 includes a plurality of jacking pieces 1301 and a driving assembly drivingly connected to the jacking pieces 1301, wherein: the drive assembly is in communication with the controller. When the laminating mechanism 100 laminates the photovoltaic module, the driving assembly is used for driving the target jack 1301 to ascend so as to form an enclosure area matched with the photovoltaic module.

It is understood that all of the lifters 1301 are in a non-raised state before the lamination mechanism 100 laminates the photovoltaic module to ensure proper feeding of the photovoltaic module. When the laminating mechanism 100 laminates the photovoltaic module, the controller controls the driving assembly to drive the target jacking piece 1301 to ascend, so as to form an enclosing area matched with the photovoltaic module and limit the photovoltaic module.

Because jacking device 130 includes a plurality of jacking pieces 1301, when spacing is carried out photovoltaic module, the jacking piece 1301 of drive photovoltaic module periphery rises, forms and closes the region with photovoltaic module assorted enclosure. For example: when the photovoltaic module needing laminating is large in size, the driving assembly drives the jacking piece 1301 on the edge of the photovoltaic module to ascend under the control of the controller to form a surrounding area matched with the photovoltaic module with the large size, and at the moment, the jacking piece on the edge of the photovoltaic module with the large size is a target jacking piece. For another example, when the photovoltaic module to be laminated is small in size, the driving assembly drives the lifting piece 1301 at the edge of the photovoltaic module to ascend under the control of the controller to form an enclosure region matched with the small-size photovoltaic module, and at this time, the lifting piece at the edge of the small-size photovoltaic module is a target lifting piece. Therefore, the laminating mechanism 100 provided by the embodiment of the utility model can be used for fixing photovoltaic modules with different sizes.

In some embodiments, as shown in fig. 1, hold-down apparatus 110 includes a plurality of first heating members 1102 and an upper cavity 1101 for receiving plurality of first heating members 1102, and hold-down apparatus 120 includes a plurality of second heating members 1202 and a lower cavity 1201 for receiving plurality of second heating members 1202 and a plurality of lift members 1301. The pressure sensor is provided on the second heating member 1202. The plurality of lift members 1301 are disposed on the outer periphery of the plurality of second heating members 1202. When the lamination mechanism 100 laminates a photovoltaic assembly, the upper and lower cavities 1101 and 1201 form a lamination cavity.

For example, after the photovoltaic module is placed on the pressing device 120, the pressure sensor senses the gravity of the photovoltaic module and transmits the sensed gravity information to the controller in communication connection with the pressure sensor, and the controller confirms the position of the photovoltaic module and controls the driving assembly to drive the target jacking member to ascend. After the controller controls the driving assembly, the jacking piece 1301 is used for ascending along the edge of the photovoltaic assembly under the driving of the driving assembly to limit the photovoltaic assembly. First heating element 1102 is used to heat the photovoltaic module from the top and second heating element 1202 is used to heat the photovoltaic module from the bottom. After the upper cavity 1101 and the lower cavity 1201 are folded, a laminating space capable of accommodating a photovoltaic module is formed.

Illustratively, as shown in FIG. 1, the lower chamber 1201 includes a lower chamber platen 12012 and a lower chamber floor 12011. The lower cavity bottom plate 12011 is used for carrying a plurality of second heating members 1202 and a plurality of jacking members 1301, and the lower cavity table 12012 is used for enclosing a laminating space capable of accommodating the photovoltaic module with the upper cavity 1101.

It can be understood that, as shown in fig. 2 and fig. 3, the plurality of jacking members 1301 are uniformly arranged on the lower cavity 1201 and are located at the periphery of the second heating member 1202, so as to avoid affecting the heating effect of the second heating member 1202 on the photovoltaic module. Meanwhile, when the photovoltaic module is limited, the jacking piece 1301 can tightly surround the periphery of the photovoltaic module to form a closed shape, and can also rise only at four corners and edges of the photovoltaic module, which is not limited in the embodiment of the utility model.

With the above technical solution, the pressing device 110 of the laminating mechanism 100 includes a plurality of first heating members 1102, and the pressing device 120 of the laminating mechanism 100 includes a plurality of second heating members 1202, which can respectively heat the photovoltaic module from the top and the bottom of the photovoltaic module. The problem that in the prior art, only the bottom of the photovoltaic module is heated, the heat transfer speed is low, the local heating of the photovoltaic module is uneven, and the deformation of the photovoltaic module is further aggravated is solved.

In some embodiments, as shown in fig. 1, the upper chamber 1101 has a first through-hole 1103, the first through-hole 1103 being in communication with an upper vacuum conduit of the photovoltaic laminator; the lower cavity 1201 is provided with a second through hole 1203, and the second through hole 1203 is communicated with a lower vacuum pipeline of the photovoltaic laminating machine.

Based on this, the upper vacuum pipe of the photovoltaic laminator can inflate and deflate the upper pressing device 110 of the laminating mechanism 100 through the first through hole 1103, and the lower vacuum pipe of the photovoltaic laminator can inflate and deflate the lower pressing device 120 of the laminating mechanism 100 through the second through hole 1203.

For example, after the laminating mechanism 110 and the pressing mechanism 120 are closed, in a first step, a vacuum-pumping procedure of the laminating mechanism 100 needs to be performed, that is, the laminating mechanism 100 is pumped through the first through hole 1103 and the second through hole 1203 respectively to the laminating mechanism 110 and the pressing mechanism 120, so that the laminating mechanism 100 is in a vacuum state in both the laminating mechanism 110 and the pressing mechanism 120. On the one hand, the air in the gaps of the photovoltaic module material is discharged, air bubbles in the photovoltaic module are eliminated, and on the other hand, the pressure difference is generated in the cavity of the laminating machine, and the pressure required in the subsequent laminating procedure is generated. The second step is to run the pressurization program of the laminating mechanism 100, i.e. the upper pressing device 110 is inflated through the first through hole 1103, and the lower pressing device 120 is continuously evacuated through the second through hole 1203, so that the lower pressing device 120 is kept in a vacuum state. At this time, since the pressure inside the pressure equipment 110 is greater than the pressure outside the pressure equipment 110 inside the laminating mechanism 100, the pressure can act to make the material of the photovoltaic module more compact, which is beneficial to exerting better performance. And the third step is to operate a lamination program to further discharge residual gas in the photovoltaic module and apply pressure to the photovoltaic module, so that an EVA adhesive film in the packaging material is more compact in molecular structure after being cured, has better performance, and enhances the adhesion degree with other materials to complete the lamination of the photovoltaic module. Finally, in the fourth step, the upper pressing device 110 and the lower pressing device 120 need to be opened, at this time, the upper pressing device 110 needs to be evacuated through the first through hole 1103, and the lower pressing device 120 needs to be inflated through the second through hole 1203, so that the photovoltaic module can be taken out conveniently.

In some embodiments, the over-pressure device 110 further comprises a sealing member 1105, the sealing member 1105 being located on a side of the first heating element 1102 facing the lower cavity 1201 and fixedly connected to a sidewall of the upper cavity 1101, the sealing member 1105 being configured to form a sealing structure 1104 with the upper cavity 1101.

As shown in fig. 1, a first end of a sealing member 1105 is fixedly connected to an inner wall of one side of the upper chamber 1101, a second end of the sealing member 1105 is fixedly connected to an inner wall of the other side of the upper chamber 1101, and the sealing member 1105 is located between the photovoltaic module and the plurality of first heating elements 1102. When the photovoltaic module is laminated, after the upper cavity 1101 is inflated, the air pressure in the sealing structure 1104 is greater than the air pressure outside the sealing structure 1104, and the sealing member 1105 is pressed towards the top of the photovoltaic module under the action of the difference of the internal and external pressure, so that the photovoltaic module is fixed in the jacking device 130 under the pressing of the sealing member 1105, and the displacement of the photovoltaic module is further avoided. And the top of the photovoltaic module can effectively reduce the gap between each layer of packaging material of the photovoltaic module under the action of the downward pressure of the sealing member 1105, and avoid the phenomenon that bubbles are generated inside the photovoltaic module due to the overlarge gap between each layer of material, thereby producing unqualified photovoltaic modules.

It is understood that the sealing member 1105 may be a rubber layer, or may be another elastic material that can achieve a sealing effect and is resistant to high temperature, and the embodiment of the utility model is not limited thereto.

Illustratively, when the laminating mechanism 100 laminates the photovoltaic module, each of the first heating members 1102 has a first surface close to the photovoltaic module, each of the second heating members 1202 has a second surface close to the photovoltaic module, and the first surface and the second surface are both circular arc surfaces.

It can be understood that, when carrying out the lamination to photovoltaic module, the first face and the second face that are close to photovoltaic module are middle slight bellied arc surface, and this arc surface has elasticity, when carrying out the lamination to photovoltaic module, the arc surface can cushion the effort of second heating member 1202 to photovoltaic module's bottom, can avoid because the top of heating member is too sharp-pointed or hardness is too strong to produce the damage to photovoltaic module, influence photovoltaic module's product percent of pass.

In some embodiments, as shown in fig. 4, the laminating mechanism 100 further includes a high temperature cloth 140 located between the photovoltaic module and the pressing device 120, the high temperature cloth 140 has a plurality of openings, and the positions of the plurality of openings correspond to the positions of the plurality of lifting pieces 1301 in a one-to-one manner.

It can be understood that, because the high-temperature cloth 140 is made of the polytetrafluoroethylene emulsion, the prepared polytetrafluoroethylene high-temperature cloth 140 has the characteristic of good anti-adhesion property. Based on this, high temperature cloth 140 is located between photovoltaic module and the device 120 that pushes down, and at the in-process that carries out the lamination to photovoltaic module, high temperature cloth 140 can avoid photovoltaic module and push down device 120 adhesion together, is of value to the product percent of pass that improves photovoltaic module. Meanwhile, the positions of the openings of the high-temperature cloth 140 correspond to the positions of the jacking pieces 1301 one to one, so that the lifting of the jacking pieces 1301 cannot be influenced, and the limiting effect of the jacking pieces 1301 on the photovoltaic assembly cannot be influenced.

In some embodiments, the difference between the top height of the lift 1301 and the top height of the photovoltaic module when the lamination mechanism 100 laminates the photovoltaic module comprises 5mm to 10 mm.

Illustratively, when the laminating mechanism 100 laminates the photovoltaic module, the jacking piece 1301 is in a lifting state under the driving of the driving assembly, and the difference between the top height of the lifted jacking piece 1301 and the top height of the photovoltaic module can be 5mm, 7mm or 10mm, that is, the lifted jacking piece 1301 needs to be at least 5mm higher than the photovoltaic module. Meanwhile, when the photovoltaic module is laminated, the top of the jacking piece 1301 can also contact the sealing piece 1105 on the upper cavity 1101, and an excessively high height difference can enable the jacking piece 1301 to jack up the sealing piece 1105, so that the distance between the sealing piece 1105 and the top of the photovoltaic module is increased, and the laminating effect of the sealing piece 1105 on the photovoltaic module is further influenced. Based on this, suitable difference in height between the top height of jacking piece 1301 after rising and photovoltaic module's the top height can guarantee that jacking piece 1301 is when spacing carrying on photovoltaic module, and the height that photovoltaic module piled up can not surpass jacking piece 1301, and simultaneously, jacking piece 1301 also can not be too high, leads to influencing photovoltaic module's lamination effect to jacking piece 1301 has been guaranteed to photovoltaic module's spacing effect.

In some embodiments, jack 1301 is a cylindrical jack 1301; alternatively, the jacking member 1301 is a frustum-shaped jacking member 1301.

Illustratively, FIG. 5 illustrates a cylindrical jacking member 1301.

It is understood that the jacking piece 1301 may also be a square column-shaped jacking piece 1301, or the jacking piece 1301 may also be a frustum-shaped jacking piece 1301, which is not limited in the embodiment of the present invention. It should be noted that the top of the lifting piece 1301 may also be a slightly convex arc in the middle, and the top of the lifting piece 1301 contacts the sealing member 1105 when the photovoltaic module is restrained. The area of the arc surface in contact with the seal 1105 is smaller than the area of the flat surface, and only the portion in contact with the seal 1105 can be lifted up, so that the seal 1105 has less influence on the lamination effect of the photovoltaic module.

In some embodiments, the drive assembly is a pneumatic drive assembly or a pressure sensitive drive assembly.

For example, the driving assembly may be a pneumatic driver, and may convert the energy of the compressed air into mechanical energy to drive the target lift 1301 to ascend.

For example, the driving assembly may also be a pressure-sensitive driver, which can convert the energy generated by the pressure into mechanical energy to drive the target jacking member 1301 to ascend.

In a second aspect, an embodiment of the present invention further provides a photovoltaic laminator, including the laminating mechanism 100 described in the first aspect or any possible implementation manner of the first aspect.

The beneficial effects of the photovoltaic laminator provided by the second aspect are the same as the beneficial effects of the laminating mechanism 100 described in the first aspect or any possible implementation manner of the first aspect, and are not described herein again.

In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (11)

1. A lamination mechanism for a photovoltaic lamination press, comprising: pressure equipment put, pushes down device, jacking device, pressure sensor and with jacking device with pressure sensor communication connection's controller, wherein:

the upper pressing device and the lower pressing device are arranged oppositely, the jacking device is positioned in the lower pressing device, and the pressure sensor is arranged on the lower pressing device;

when the laminating mechanism laminates the photovoltaic assembly, the photovoltaic assembly is placed on the pressing device, the jacking device forms a surrounding area matched with the photovoltaic assembly, and the photovoltaic assembly is limited along the length direction of the photovoltaic assembly and the width direction of the photovoltaic assembly.

2. The lamination mechanism as claimed in claim 1, wherein the jacking device comprises a plurality of jacking members and a driving assembly drivingly connected to the jacking members, wherein: the driving assembly is in communication connection with the controller;

when the laminating mechanism laminates the photovoltaic assembly, the driving assembly is used for driving the target jacking piece to ascend so as to form an enclosure area matched with the photovoltaic assembly.

3. The laminating mechanism as claimed in claim 2, wherein the press-up device includes a plurality of first heating members and an upper cavity for accommodating the plurality of first heating members, and the press-down device includes a plurality of second heating members, a lower cavity for accommodating the plurality of second heating members and the plurality of lift-up members;

wherein the pressure sensor is disposed on the second heating member; the plurality of jacking pieces are arranged on the peripheries of the plurality of second heating pieces;

when the photovoltaic module is laminated by the laminating mechanism, the upper cavity and the lower cavity form a laminating cavity.

4. The lamination mechanism as claimed in claim 3, wherein the upper cavity has a first through-hole in communication with an upper vacuum conduit of the photovoltaic laminator; the lower cavity is provided with a second through hole, and the second through hole is communicated with a lower vacuum pipeline of the photovoltaic laminating machine.

5. The lamination mechanism as claimed in claim 3, wherein the pressing device further includes a sealing member, the sealing member is located on a side of the first heating element facing the lower cavity and is fixedly connected to a sidewall of the upper cavity, and the sealing member is configured to form a sealing structure with the upper cavity.

6. The lamination mechanism as claimed in claim 3, wherein each of the first heating members has a first face adjacent to the photovoltaic module and each of the second heating members has a second face adjacent to the photovoltaic module when the lamination mechanism laminates the photovoltaic module, the first face and the second face each being a circular arc face.

7. The lamination mechanism as claimed in any one of claims 2 to 6, further comprising a high temperature cloth located between the photovoltaic module and the pressing device, the high temperature cloth having a plurality of openings, the positions of the plurality of openings corresponding to the positions of the plurality of lifters one to one.

8. The lamination mechanism as claimed in any one of claims 2 to 6, wherein a difference between a top height of the lift-off member and a top height of the photovoltaic module when the lamination mechanism laminates the photovoltaic module comprises 5mm to 10 mm.

9. The lamination mechanism as claimed in any one of claims 2 to 6, wherein the lift-off member is a cylindrical lift-off member; or the like, or, alternatively,

the jacking piece is a frustum-shaped jacking piece.

10. The lamination mechanism as claimed in any one of claims 2 to 6, wherein the drive assembly is a pneumatic drive assembly or a pressure sensitive drive assembly.

11. A photovoltaic laminator comprising the lamination mechanism of any one of claims 1-10.

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